#!/bin/bash

# Slackware build script for ezquake

# Copyright 2023 Matt Dinslage, Springfield, MO
# All rights reserved.
#
# Redistribution and use of this script, with or without modification, is
# permitted provided that the following conditions are met:
#
# 1. Redistributions of this script must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
#
#  THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR IMPLIED
#  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
#  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
#  EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
#  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
#  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
#  OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
#  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
#  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
#  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

cd $(dirname $0) ; CWD=$(pwd)

PRGNAM=ezquake
VERSION=${VERSION:-3.6.1}
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}
PKGTYPE=${PKGTYPE:-tgz}

if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) ARCH=i586 ;;
    arm*) ARCH=arm ;;
       *) ARCH=$( uname -m ) ;;
  esac
fi

# If the variable PRINT_PACKAGE_NAME is set, then this script will report what
# the name of the created package would be, and then exit. This information
# could be useful to other scripts.
if [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
  echo "$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE"
  exit 0
fi

TMP=${TMP:-/tmp/SBo}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}

if [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
  LIBDIRSUFFIX=""
  BINSUFFIX="i386"
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
  LIBDIRSUFFIX=""
  BINSUFFIX="i386"
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  LIBDIRSUFFIX="64"
  BINSUFFIX="x86_64"
else
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
fi

set -e

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf rm -rf $PRGNAM-source-$VERSION
tar -xvf $CWD/$PRGNAM-source-$VERSION.tar.gz
cd $PRGNAM-source-$VERSION
chown -R root:root .
find -L . \
 \( -perm 777 -o -perm 775 -o -perm 750 -o -perm 711 -o -perm 555 \
  -o -perm 511 \) -exec chmod 755 {} \; -o \
 \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
  -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;

# dont use precompiled binary, make our own
CFLAGS="$SLKCFLAGS" \
CXXFLAGS="$SLKCFLAGS" \
make

# the ezquake-ubuntu-3.2.3-full.tar.gz file has some assets we need
mkdir -p $PKG/usr/share/games/$PRGNAM
bsdtar -x -o -C "$PKG/usr/share/games/$PRGNAM" -f "$CWD/ezquake-ubuntu-3.2.3-full.tar.gz"

# create directories and install files
mkdir -p $PKG/usr/games
mkdir -p $PKG/usr/share/{pixmaps,applications}
cat dist/linux/io.github.ezQuake.128.png > $PKG/usr/share/pixmaps/$PRGNAM.png
cat dist/linux/io.github.ezQuake.desktop > $PKG/usr/share/applications/$PRGNAM.desktop

# replace precompiled binary with ours
rm -f $PKG/usr/share/games/$PRGNAM/$PRGNAM-linux-*
cp $PRGNAM-linux-$BINSUFFIX $PKG/usr/share/games/$PRGNAM
chmod 0755 $PKG/usr/share/games/$PRGNAM/$PRGNAM-linux-$BINSUFFIX

# Fix permissions on assets directories and files
find $PKG/usr/share/games/$PRGNAM -type d -exec chmod 0755 "{}" \;
find $PKG/usr/share/games/$PRGNAM -type f \! -name "$PRGNAM-linux-$BINSUFFIX" \
  -exec chmod 0644 "{}" \;

# create shortcut to binary
cat $CWD/ezquake.launcher > $PKG/usr/games/$PRGNAM
chmod 0755 $PKG/usr/games/$PRGNAM

# fix ezquake.desktop file
sed -i \
  -e "s|io.github.ezQuake|/usr/share/pixmaps/ezquake.png|" \
  -e "s|Exec=ezquake.sh|Exec=ezquake|" \
  $PKG/usr/share/applications/$PRGNAM.desktop

# we don't need two copies of the LICENSE file
rm -f $PKG/usr/share/games/$PRGNAM/LICENSE

find $PKG -print0 | xargs -0 file | grep -e "executable" -e "shared object" | grep ELF \
  | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a CHANGELOG LICENSE README.md $PKG/usr/doc/$PRGNAM-$VERSION
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild

mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc
cat $CWD/doinst.sh > $PKG/install/doinst.sh

cd $PKG
/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE
